Type-writing machine.



No. 650,005. Patented Aug. a4, |900.'

G. BLIEKEHSDERFER.

TYPE wmmc: 000001005..

(Application led Apr. 26 1900.) (No Model.) 7 Sheets-Sheet Patented Aug. I4, |900.

G. C. BLICKENSDERFER. TYPE WRIING HAGE-HNE.

7 Sheets-Sheet 2 (Application led Apr. 26 1900.) (Ho Modei.)

No. 656,085. Paented Aug.. I4, |900.

G. "BLIGKENSDERFER A (Application filed Apr. 26, 1900.) (Ha udl.) 7 Sheets-Sheet 3.

No. 656,085. Pailied ug. I4, i900.

a. BUCKENSDERFER.

TYP WRITING CMSN.

(Application filed Apr. 2B, 1900.) (NU HOM-D 7 shaets-sheaf 4 No. 656,085. Patented Aug. I47 i900.

` G. C. BLICKENSDERFER. TYPE WRITING MACHINE.

(Application iled Apr. 26, 1900.)

(no Model.) 7 sheexkshex Patented Aug I4, |900. G. C. BLICKENSDERFER. TYPE WRITING mAcHmE.

(Application led Apr. 26, 1900.) (No Model.) 7 Sheets-Sheet 6.

Patented Aug. I4, 1900.

G. C. BLICKENSDEBFEBL TYPE WRITING MACHINE. (Applic'ation lafl Apr. 26, 19Go.)

(No Modal.)

l NITnD STATES ATENT OFFICE.

GEORGE C. BLICKENSDERFER, OF STAMFORD, CONNECTICUT.

TYPEEWRITIN'G- MACKHIN E.

SPECIFTCATION forming part of Letters Patent o. 656,085, dated August 14, 1900.

Appnmitnfnednprnz,1900. stating. 14,452. (Nomad.)

To all whom, t may concern: v

Be it known that I, GEORGE C. BLioKENs- DERFER, a citizen of the United States, residing at Stamford, county of Fairfield, and State of Connecticut, have invented certain new and useful Improvements -in Type-lfVriting Machines, fully described and represented in the following specification and the accom-` panying drawings, formingapart of the same.

This invention relates to certain improvements in type-writing machines.

The invention has for one of its objects to produce an improved vtype-writing machine which shall embody a simple, compact, and efficient power mechanism by which the type mechanism is operated.

A further object of the invention is to produce an improved type-writing machine in which the several parts shall be so arranged that the machine is capable of being operated either by power or by hand.

A further object of the invention is to produce an improved type-writing machine in which the carriage shall be returned by a simple and efcient power mechanism.

With these and other objects in' view the invention consists in certain constructions and in certain parts, improvements, and combinations, as will be hereinafter fully described and then more particularly pointed out in the claims hereunto appended.

In the accompanying drawings, which form a part of this specification, and in which like characters of reference indicate the same parts, Figure 1 is a perspectiveview of a typewriting machine embodying the invention. Fig. 2 is a sectional side elevation of the construction shown in Fig. 1. Fig. 3 is a view similar tg Fig. 2, but showing the parts in a different position. Fig. 4 is a detail perspective view illustrating the connections between the key-levers and the operating-tumblers and also the construction of the segment-locking mechanism. Figs. 5 and 6 are detail views. Fig.7,is a side view, on an e'nlarged scale, of the clutch mechanism. Fig. 8 is a View similar to Fig. 7, showing the parts in a different position. Fig.,9 is a view similar to Figs. 7 and 8, but showing the parts in still another position. Fig. 10 is an elevation of the construction shown in'Fig. 7 looking at it from ythe left of the observer, the parts being shown in the position in which they are shown in Fig. 7. ,Fig 11 is a plan View of the construction shown in Fig. 7. Fig. 12 is a sectional elevation on the line 12 12 of Fig. 7. Fig. 13 is a view similar to Fig. 10, but showing the crank and ratchet wheels locked together by the locking-pawl. Fig. 14 is a view similar to Fig. 11,4but showing the parts in a dierent position. Fig. 15 is a diagrammatic view illustrating several parts of the clutch mechanism. Fig. 16 is a side elevation of the carriage-returning mechanism. Fig. 17 is a section on the line. 17 17 of Fig. 16.

1 Referring to the drawings, the frame,which lnay be of any usual or ordinary construction,

consists of a casting l, which forms the base of the frame, and a casting 2, which forms the top of the frame, the casting 2 bein g connected to or supported on the casting 1 by meanswf pillars 3 or in any other suitable or desired manner.

Connected to the frame in any suitable manner is the case which contains the motor. This case is shown as consisting of two heads or drums 4, formed to provide suitable bearings in which the main power-shaft 5 is mounted. Any suitable form of motor may be used to drive the main power-shaft 5. Preferably, however, an electric motor will be used; but since this motor forms no part of the invention it is not illustrated. In this machine the power mechanism in the preferred form of the construction is constantly driven, and an actuating mechanism is provided through which the type mechani'sm is operated, the actuating mechanism being connected to and disconnected from the power mechanism for each operation of the type mechanism.

The power mechanism, in the form of the machine shown embodies the constantly-running power-shaft 5 before referred to, and the actuating mechanism is connected to and disconnected from the shaft by a clutch. Any suitable form of clutch may be used between the powershaft and the actuating mechanism. In the construction shown the power-shaft 5 is provided with a ratchet-wheel 6, which is secured thereto in any suitable or desired manner-as, for instance, by a pin 7, (see Fig. 12)-so as to constantly rotate with the shaft. Loosely mounted in any suitable IOO manner on the power-shaft is a driving-wheel 8, which is preferably a crank-wheel, said wheel being shown as held in position by a washer 9, which is or may be secured to the end of the shaft by means of a suitable screw, as 10.

The driving crankwheel 8 is designed to d be secured to and disengaged from the constantly-rotating ratchet-wheel G for each operation of the machine. Vhile this may be elected in any suitable manner, in the cons'truction shown, which embodies a preferred form, the driving-wheel 8 carries a pawl 11, having an angular end 12, said pawl being pivoted on apin 13. (See Fig. 15.) The under side of the pawl is provided with an eye, to which is secured a spring 14, which tends to draw the pawl down into a position in which its angular end 12, which extends over the ratchet-wheel G, engages the tee-th of said wheel.

Suitable controlling means are provided to prevent the engagement of the pawl with the ratchet-wheel except when such engagement is desired. In the construction shown this is effected by a controller 15, which is shown as loosely mounted on a boss 16, which extends from one of the heads 4 of the motor-case. This controller 15 is provided with a cam 17, which in the normal position of the parts lies underneath the angular end 12 of the pawl 11 and raises it out of engagement with the teeth of the ratchet-wheel. lVhen, howex-er, the controller is swung on the boss, the cam 17 passes out from under the angular end of the pawl and allows it to engage the teeth of the ratchet-wheel. The controller 15 in the construction shown is provided with an extension 18, said extension having a slot 19, which takes over a pin 20, extending from one of the heads 4 of the motor-ease, the purpose of this construction being to limit the controller in its movement, though this guiding construction may be omitted, if desired. The extension 18 is further provided with a cam projection 21, the purpose of which will be hereinafter stated.

The controller 15 is operated from the keys of the machine through suitable connections, which may be varied widelyin construction. In the machine shown a slide-bar 22 is provided for this purpose, said bar being connected at one end to a lever 23, which is thrown into operation when a key is operated in a manner to be hereinafter described. Near its operating end the slide-bar 22 is provided with a slot 24, which takes over a pin 25, extending from one of the heads et of the motor-case, said pin serving to guide the bar in its movement.

In the preferred form of the construction the slide-bar 22 and the controller 15 are preferably detaehably connected. To this end the operating end of the bar is provided (see Fig. 15) with an open-ended slot 26, which takes over an upwardly-extending pin 27, said pin being mounted on an angular arm 28, secured to the controllerl. The slide is held forward-that is, in the position in which the cam 17 is in position to hold the pawl 11 out of engagement with the teeth of the wheel -in any suitable manner. In the construction shown the slide is provided with a pin 29, to which is connected a spring 30, the other end of the spring being connected to a pin 31, extending from one of the heads 4 of the motor-case.

Vtith the construction so far described it will be seen that when the lever 23 is operated, through the connections to be hereinafter described, from any one of the keys the slidebar 22 is moved rearwardly against the stress of the spring 30. This movement ofthe slidebar rocks the controller 15 on the boss 16 and moves the cam 17 ont from under the angular end 12 of the pawl 11. The pawl under the influence of. its spring immediately engages the teeth of the ratchet-wheel 6, and the driving crank and ratchet wheels are locked together and rotate together.

The power from the driving-wheel may be transmitted to the actuating mechanisml in any suitable manner. In the machine shown the crank-wheel 8 is provided with a crankstud 32, to which is connected a connectingrod 33, the other end of the rod being connected to an arm 34:, which is loosely mounted on a shaft 35, journaled in bearings 36 on the lower casting 1. While the arm 34 is loosely mounted on the shaft, it is arranged to be rigidly connected to parts carried by the shaft in a manner which will be hereinafter described, so that a movement of the arm rocks the shaft.

The throw of the shaft produced by the driving crank-wheel is preferably made adjustable. While any suitable adjustable connection may be used to et'ect this result, in the construction shown the arm 34is provided with a slot 37, which extends lengthwise of the arm. The rod 33 is provided with a slot 38, which extends lengthwise thereof, as shown, and the rod and arm are connected by means of a bolt 39 or in any other suitable manner. It will be seen that by adjusting the bolt up or down in the slot 37 the point of connection Abetween the rod and the arm is varied with' reference to the center about which the arm moves, and the throw of the arm is consequently varied.

Means are preferably provided to prevent any breakage in the machine due to any binding or locking of the mechanism operated through the arm 34. While any suitable means may be used for this purpose, a slip or friction connection is preferably formed between the connecting-rod 33 and the arm 34, and to this end a stiff spring 40 is provided, said spring being carried on the arm 34; and bearing against the end of the rod 33, this construction being clearly shown in Fig. 3. As the crank-wheel rotates, therefore, if the arm 34 or any of the mechanism operated by it is locked or binds the rod 33 will have a IOO IIO

lengthwise movement with respect to the arm 34, said movement being permitted by the slot 38. The crank-wheel therefore may be rotated without moving .the arm 34 in case of any locking or binding of the machine; but the spring 40 is made stiff enough so that under ordinary circumstances the rotation of the crank-wheel will operate through the connecting-rod to rock the arm.

The machine is designed so that one revolution of the crank-wheel operates to effect a printing movement of the type mechanism, after which the crank-wheel is disconnected from the ratchet-wheel. This is effected in the present machine by the return movement of the controller 15, which after being operated by the slide 22 swings back into its original position. When this construction is used, it is important that the controller return to its original position before the crankwheel completes its revolution, for otherwise the wheel might run far enough so as to carry the end 12 of the pawl 11 over the cam 17,- and if this occurred the pawl would again engage and the machine would repeat. In order to insure the prompt return of the controller, it is preferably arranged to be disconnected f'rom the slide-bar 22 immediately after it has been moved thereby. While any suitable devices may be used to effect this disconnection, in the construction shown the crank-wheel 8 is provided with a projection or flange 41, which cooperates with a cam 42 on the forward end of the slide. Immediately after the crank-wheel has been connected to the ratchet-wheel on the forward movement of the slide and the wheel begins its rotation the projection 4l strikes the cam 42 and moves the slide sidewise a sufficient amount to disconnect the operating end of the slide from the pin 27, said pin passing out of the open end of the slot 26. As soon as this occurs the controller 15 is free to assume its normal position and does so, this movement being due to several causes, among which is the fact that it is overweighted and normally tends to swing into a forward position and also the fact that the rotation of the wheel 6, against which it lies, tends to carry it forward. Before, therefore, the wheel 8 can complete its rotation the controller 15 has resumed its normal position, this position being such that the cam 17 will disengage the pawl 11 as the crank-wheel completes its rotation.

Devices which may be varied in construction are preferablyprovided to insure the accurate stopping of the crank-wheel Swhen it has completed its revolution. To this end the wheel is provided with two notches 43 44. The notch 43 is arranged to be engaged by the end of a stop-arm 45, which is pivoted on a screw 46, secured to the base 1 of the frame, said arm preventing when in engagement with the notch any forward rotation of the wheel. Another stop-arm 47 is provided, the end of which engages the notch 44 and prevents any extension 18 of the controller 15.

backward rotation of the wheel. In order to positively insure that the stop-arm 45 is properly positioned to engage the notch 43, it is preferably provided with a curved eXtension 48, which is arranged to be struck in the revolution of the wheel 8 by a pin 49, carried on said wheel. As the wheel rotates in the direction of the arrow (see Figs. 7 to 9) it will be seen that the pin 49 will positively engage the extension 4S and throw the stop-arm 45 into a position where it must engage the notch 43. The arms 45 and 47 are preferably connected by a light spring 50, the purpose of which is to prevent any rebound of the stoparm 45. The arm 47 is held up against the wheel 8 by means of a spring 5l, which is connected to the arm and to a pin 52, extending from one of the heads of the motor-case.

When the controller 15 is operated to move the cam 17 out from under the end 12 of the pawl 11, it is necessary at the same time to release the wheel 8 from the stop-arm 45. While the means for accomplishing this may be varied, in the construction shown the'arm 45 is provided with a pin 53,said pin projecting into the path of the cam projection 21, which, as before stated, is mounted on the end of the The rocking of the controller, therefore, by the means before described not only allows the pawl l1 to snap in and lock the crank-wheel '8 to the ratchet-wheel 6, but it also moves the stoparm 45 out of the way, and thus unlocks the wheel, so as to permit it to turn.

When the crank-wheel has been clutched to the power-shaft in the manner hereinbefore described, it serves to drive the actuating mechanism, which through proper connections causes the type to be impressed upon the paper. This actuating mechanism may be widely varied in construction. In the construction shown the shaft 35-has keyed thereto a pair of arms 54 55, said arms being connected by an actuating bar or bail 56, which may be, and in the construction shown is, formed integral with the arms. which it will be remembered has been described as the arm to which the connectingrod 33 is secured, is connected to one of the arms-viz. the arm 55-in any suitable manner. Preferably, however, it will be detachably connected, as by a set-screw 57.

Suitable means which may be varied in construction are provided for locking the bar or bail 56 at proper times to the actuating mechanism for a particular type. In the construction shown the upper edge of the actuating bar or bail is provided with a reduced edge 58, which underlies the arms 59 of a series of locking bell-crank levers 59 60, one for each key-lever. These locking bell-crank levers in the construction shown are pivotedat 6lv to actuating-levers 62, which are mounted on the shaft 35. Each of the bell-crank levers has its arm 59 provided with a notch 63, the notches being so arranged that when the bar or bail 56 is in its backward or normal posi- IIO The arm 34, Y

tion the notches will be in position to engage the reduced edge of the bail. It is obvious, therefore, that if any one of the bell-cranks is turned on its pivot its notch will engage the upper reduced edge of the bail 56 and the hell-crank lever, and the actuating-levers 62 will be locked to and move with the bail as itis moved. WVhile the locking-levers may be disconnected from the bar orbail 56 in any suitable manner, the parts are preferably so arranged that as the actuating-bar completes its operating movement the springs 65 turn the bell-crank locking-levers on their pivots and disengage them from the bar.

A guide is preferably provided to insure the accurate movement of the bell-crank levers, said guide, as shown, consisting of a comb 64, between the teeth of which the levers lie, said levers being normally held out of engagement with the bail or bar 56 by means of suitable springs 65. The teeth of the combguide are preferably made long enough so that when the levers are thrown down into engagement with the bail they will not pass out from between the teeth.

The machine which has been selected to illustrate the invention is generally of the well-known Blickensderfer type, in which the printing characters are carried by a wheel and the wheel is rotated to bring into position the proper character to be impressed upon the paper. In the present machine the type-wheel 66 is mounted on a vertical shaft 67, said shaft being provided with a stoppingratchet 68 and a pinion 69, by which it is rotated, the shaft being supported by a rockshaft 70. This shaft 70 is shown as carried by cone-pins 7l, which are mounted in bearings 72 on the upper casting 2 of the frame. The shaft 70 supports a two-part operating 1n echanism,said mechanism including sleeves 73 and 74, the sleeve 73, having connected to it the sector-carrying arm and the sleeve 74 having connected to it the sector-carrying arm 76, both sectors being in engagement with the pinion69. It will be understood that a part of the keys operate upon the sector 75 through the sleeve 73 and suitable connections and the remainder of the keys upon the sector 76 through the sleeve 74 and suitable connections. `When either of the sectors is rocked, the other is held stationary by means of a suitable locking mechanism, and the moving sector' causes the pinion 69 to roll upon the stationary sector until the stopping-ratchet is engaged by a locking-pawl 75', which is shown as carried on a bail 76. After the stop-pawl engages the stoppingratchet both sectors and the type-wheel move together until the type strikes the paper.

In the present machine the rotation of the sleeves 73 74 is effected to rotate the typewheel, and the stop-pawl 75' is thrown into operation to stop the rotation of said wheel by means of graduated tumblers 77, one of these tumblers being provided for each keylever and a part of the tumblers being arranged on the sleeve 7 3 and the remainder on the sleeve 74. Suitable means are provided to lock each tumbler to its carrying-sleeve, so that the sleeve may be operated by the tumbler. Vhile this may be effected in various ways, in the construction shown each tumbler is made movable with respect to its carrying-sleeve, and, as shown in Figs. 2 and 4 to 6, the sleeve 73 is provided with a projection 78 and a iattened side 79, and 'the sleeve 74 is provided with a similar projection S0 and its under side is similarly flattened. Eaeh of the tumblers is provided with an opening which is somewhat wider than the sleeve and its projection and with a notch 81, these notches being arranged to engage the projections 78 and 8O of the sleeves. Each tumbler is further provided with a fiattened side S2, which sides cooperate with the flattened sides of the sleeves. The tumblers are further provided with graduated projections S3, said projections taking under the bail 76, which carries the stop-pawl 75, this bail, it may be here remarked, being carried in arms S4 S6 of two bell-crank levers S4 S5 and 86 87, which are loosely mounted on the rockshaft 70.

In the present machine the tumblers are operated from the levers 62. While the construction by which this is accomplished may be varied, each of the tumblers is shown as provided with a set of segment-teeth SS, and the levers 62 are provided with similar teeth Si), with which the teeth SS mesh. It will be apparent that when a particular segment-lever 62 is rocked its teeth Si) will mesh with the teeth SS of the tumbler which coperates with it. As the teeth come into mesh the tumbler will first be caused to slide with respect to the sleeve 73 or 74, as the case may be, until the notch on the tumbler engages with the projection 78 or SO. When this occurs, the tumbler' is locked to the sleeve and any further movement of the lever 62 causes erate the segment attached to the sleeve. Owing, however, to the peculiar size and shape of the openings in the tumblers, only that tumbler will be moved which is locked to the sleeve, the sleeve turning idly in the openings of the other tumblers. This construction furthermore operates as a safetylock, for as soon as one of the sleeves begins its movement no other tu rnblers can be caused to engage with it until it has been returned to its normal position. As has been before stated, one of the sectors remains stationary while the other is moving to properly position the type-wheel. In order to insure that the sector which is not moving to position the type-wheel be positively held stationary,suit able locking devices are provided. While these devices may be varied in construction, in the machine shown' the sleeve 73 is provided with a projecting arm 90, said arm having a notched end, (see Fig. 4,) and the sleeve 74 is provided with a similar notched arm 91.

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the sleeve to rotate on the shaft 70 and to op- The notched arm 90 engages a projecting linger 92, Which is loosely mounted on a shaft 93, the said shaft being suitably supported by cone-pins 94, which project through ears 95, secured to the under side of the upper casting 2 of the frame. The arm 91 is similarly engaged by a projecting nger 96, also loosely mounted on the shaft 93.

Suitable releasing devices are provided for the locking devices just described, and the-se releasing devices will preferably include an independentreleasing device foreach locking device and a releasing device which is common to both of them and by which therefore either of the locking devices may be unlocked. These releasing devices may be constructed in various ways. In the machine shown the finger 92 has connected to it an extension 97, the other end of the extension having secured to it a collar 98, which is loosely mounted on the shaft 93. rihis collar 98 has a projecting end 99, which takes over a pin 100 on a block 101, secured to the shaft 93 by means of a pin or in any other suitable manner. Similarly the finger 96 has connected to it an extension 102, to the other end of which is connected a collar 103, said collar being loosely mounted on the shaft 93 and having a projecting end 104, which takes over a pin 105, projecting from the block 101. With this construction it is obvious that by turning the extension 97 the arm 92 will be rocked out from under the locking-arm 90, and at the saine time, since the block 1011is secured to the shaft, the end 99 of the collar 98, acting upon the pin 100, will rock the shaft 93, and this movement of the shaft will take place without rocking the arm 96 and releasing the arm 91 of the other sector. Similarly by moving the extension 102 the finger 96 will be rocked out from under the arm 91, and at the same time the end 104 of the collar 103, acting on the pin 105, will rock the shaft 93, this operation taking place without disturbing the locking position of the finger 92. Either locking device may therefore be released without affecting the other.

Immediately after either of the locking devices is released the power mechanism should be thrown into operationto effect the operation of the type mechanism. While this may be accomplished in various Ways, in the machine shown the shaft 93 has fastened to it an arm 106, said arm being provided With a pin 107, which takes behind the end of the lever 23, said lever, it being remembered, being lthe lever to which the slide-bar 22 is connected. When, therefore, either the lockingfinger 92 or 96 is moved to release its corresponding sector, the arm 106 causes the movement of the lever 23, which in turn moves the slide-bar to operate the clutch mechanism.

The machine is provided with the usual bank of key-levers, which may be of any suitable or desired form. In the construction shown these key-levers effect the operation of the independent releasing devices for the sector-sleeves and also the operation of the locking devices by which the actuating mechanism is locked to the operating levers. Videly-different constructions may be utilized to elfect these functions. In the construction shown, however, the key-levers consist of bent levers 108, formed with enlarged heads, said heads having projections'113 114 and notches 115. The extension 97 is provided With a projection 116, Which engages the notches of a part of the key-levers, and the eX- tension 102 is provided with a similar projection Which engages the notches of the remainder of the key-levers. The projections 113 of the key-levers lie behind the arms of the bell-cranks 59 60, which, as before stated, operate to lock the arms 62 to the actuating bar or bail 56. The projections 114 of the keylevers strike against a back-stop rod 117, which is supported in the ears 95 and which limits the movement of the levers. vWhen a key-lever is depressed, therefore, its projection 113 first strikes the arm 60 of the corresponding locking bell-crank lever 59 60 and causes the notch 63 in the arm 59 of said crank to engage the bail 56. At the same time the notch 115 of the key-lever, by reason of its engagement with the projection 116, rocks the eX- tension 97 or 102, as the case may be, and releases the locking-finger of the sector for the side on which the key is struck. At the same time the shaft 93 is rocked, which through the arm 106 operates the lever 23 and throws in the clutch of the power mechanism. The movement of the actuating-bar noW rocks forward the lever 62 corresponding to the key which is struck, turns the tumbler 77 with which it is in engagement, and rocks the corresponding sector to position the type-Wheel.

In the Blickensderfer type of machine after the wheel has been positioned and the stop-pawl which is carried by the bail 76', has been thrown in, thus locking the Wheel,

it is necessary that both sectors move withthe wheel in order that the positioned type may make its impression upon the paper. It will be remembered, however, that only one sect-or has thus far been unlocked by its independent releasing device. The releasing device which is common to both sectors is therefore now brought into operation to release the sector which remains locked after the movement by which the released sector positions the type-Wheel is completed. While this common releasing device may be varied Widely in form, in the construction shown there is connected to the arm of the bellcrank 84 85 a sliding notched pawl 118, said pawl being supported on apin 119, which projects inwardlyfrom one of the ears 95, before referred to. Similarly the arm 87 of the bell-crank 86 87 has connected to it a sliding notched pawl 120, said pawl being supported on a pin 121, which projects inwardly from the other ear 95. The notches and the pawls 118 120 are arranged to engage the projections 116 on the under side of the extensions TOO IIO

07 102. As the bail is moved, therefore, by one of the graduated tnmhlers to throw in the stop-pawl the sliding pawls 118 120 will be moved forward and will engage the extension 97 or 102, as the case may be, which corresponds with the sector which was stationary while the type-wheel was being positioned. By this engagement either the finger 92 or 96, as the case may be, will be rocked and the sector which has remained stationary will be released and permitted to move forward with the type-wheel and the other sector.

The machine is provided with a spacing mechanism which may be of any desired construction. As shown, it consists of a bar 122, which is pivoted in the casting 1 of the frame. The spacing-bar is provided with an arm 123, which is rigidly secured thereto and has an upwardly-bent end which takes undera projection 124, which extends from the lever 23, to which the slide-bar22 is connected. When, therefore, the spacing-har is touched, the upwardly-projecting end of the arm 123, acting on the projection 124, rocks the lever 23 and throws in the clutch. The spacing-bar has also connected to it an arm 142, which bears against a returning-spring 144, surrounding a sind which depends from the under side of the casting 1. In order to limit the downward movement of the keys, a snitable stop 145 is provided, said stop being preferably pivoted in the sides of the spacing bar and being held up against a stop 146 by means of a spring 147. The purpose of pivoting the stop 145 is to permit it to be turned down ont of the way when the machine is operated by hand, as will be hereinafter described.

One of the arms 54, which carries the operating bail orbar56, has connected to it a link 125, (see Figs. 4 and 16,) said link being in turn connected to a lever 126, which is pivoted to any suitable part of the machine-as for instance, to one of the heads of the motorcase. This lever carries a roll 127, which bears against a pin 128, which is connected to a slide 129, said slide serving to operate a releasing-pawl 130, the construction of the releasing-pawl being similar to that ordinarily used in this type of machines.

After a line is written the carriage may be returned by hand or in any suitable manner; but preferably it will be returned by power. Various means may be employed for this purpose; but in the construction shown aspecial carriage-returning lever131 is provided, (see Fig. 16,) said lever being connected by means of a link 132 to a block 133, which slides in diagonal guides 134 in the upper casting 2. The block 133 has a perforation through it and in this perforation is located a shaft 135, which carries on one end a beveled wheel136, which wheel may, if desired, be covered with any suitable friction material or may be constructcd from such material. This wheel 136 takes under one of the carriage-rails 137. The other end of the shaft 135 is stepped in a bearing 138, formed in one of the heads which carries the bearing for the main shaft 5. The bearing 138 has a spring 139 located therein, which normally presses the shaft upward. The main shaft 5 carries on its end a bevel friction-wheel 140, which may be engaged by a similar wheel 141, carried on the shaft 1 35. Normally,however, the wheels 141 and 140 are ont of engagement. While the carriage-operating pawl may be released in any suitable manner in order that the carriage may be returned,the block 133 preferably has connected to it an angular bracket 133', the upturned end of which takes behind the slide 129. Then it is desired to return the carriage, the carriage-returning lever is depressed by means of its key and the block 133 is caused to slide in its diagonal guides 134, forcing the wheel 136 under the carriagerail 137 and also forcing the friction-wheel 141 against the wheel 140, which being carried by the main shaft is of course constantly rotating and moving the slide 12S) to operate the pawl 130. The shaft 135 will be rotated and the wheel 136 will cause the carriage to be returned.

The general operation of the machine is as follows: XVhen the operator depresses any given key, its key-lever 108 is rocked about the shaft As soon as this takes place the projection 113 on the head of the key-lever swings the correspondingly-locki ngbell-crank 50 60 about its pivot 61, thus locking the segment-lever 62 to the bail 56, the edge of the bail beingengaged bythe notch 63 inthe arm 59 of the bellcrank. Simultaneously with this operation, supposing one of the levers which operates on the extension 97 has been struck, the notch 115 in the head of the lever engages the projection 116 and rocks the extension 97, which in turn causes the lockingfinger 92 to swing ont from under the arm 90 on the sectorsleeve 73. Simultaneously with this releasing operation the projection 99 on the collar 98, which is connected to the extension 97, strikes the pin 100 and rocks the shaft 93, thus causing the pin 107 on the arm 106 to strike the upper end of the lever 23, rocking this lever about its pivot. The lever 23 in its forward movement operates the slidebar 22 and swings the controller 15, thus causing the cam 17 to move ont from under the angular end 12 of the pawl 11, permitting the pawl to engage one of the notches of the ratchet-wheel 6, which, it will be remembered, is fast on the power-shaft 5. This locks the driving crank-wheel 8 to the power-shaft 5. Simultaneously with this operation the cam projection 21, operating on the pin 53 of the stop-arm 45, swings the stop-arm out of engagement with the notch 43 of the wheel 8, so that the wheel is free to rotate. As soon as the wheel begins its rotation the projection 41, operating on the cam 42, disconnects the slide from the pin 27, permitting the controller to resume its normal position. The rotation of the wheel 8 rocks the arm 34,which,

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' the power.

it will be remembered, is secured to one of the arms 55 by means of the set-screw 57, so that as the wheel revolves the bar 56 is rocked, carrying with it a segment-lever 62, which is in engagement with a tumbler 77. As the lever 62 begins te move the tumbler first slides on the sleeve 73, and this movement continues until the notch 31 of the tumbler engages the projection 78 of the sleeve. The tumbler 77 now rocks the sleeve 73, operating the sector which is attached thereto and rotating the type-wheel to position the type. As the type comes into position the bail 76' is raised by the graduated end S3 of the tumbler and the stop-pawl 75 is thrown intoengagement with the stopping-ratchet 68. As the bail moves up, the pawl120, which is attached to the arm 87 of one of the bell-cranks 86 87 of the bail, releases the other sector and the two sectors and the type-wheel now move forward together and the type makes an im pression upon the paper. As the bail or bar 56 comes into its eXtreme backward position its upper reduced edge 58 passes out ofA the notch 63 of the locking-bell-crank, said bell-crank being returned by its spring The bar 56 is returned by a spring 142, which returns the sector to its proper position. In the meantime the crank-wheel 8 has completed its revolution andthe cam 17 has disconnected the pawl 11 from the ratchet-wheel 6, the stop-arm 45 having been lthrown over in the meantime by contact of the pin 49 with the curved extension 4S.

While `the machine is primarily intended for use as a powermachine, it may be operated by hand when desired should an emergency arise-such, for instance,as a failure of In the present machinein order to operate it by hand the thu nib-screw 57 is loosened, thus disconnecting the arm 34 from the arm 55. This disconnects the power mechanism from the actuating-bar 56. The 4stop 145 is turned down against the stress of its spring 147, thus permitting a much greater downward movement of lthe key levers. When the machine is thus arranged, if one of the key-levers be struck its projecting end 113 will actuate the arm 60 of its corresponding locking bell-crank 59 60, throwing said arm into engagement with the actuating-bar 56. 1f now the downward movement of the lever is continued, its end 113 will still continue to act upon the bell-crank and will push it forward, carrying forward with it the segmen t-lever 62 and the actuating-bar, although in this instance the actuating-bar makes an idle movement, exceptin so far as it operates the spacing mechanism. The movement of the segment-lever 62 will effect the movement ofthe corresponding tumbler, and all the subsequent operations of the machine will be effected in the same manner as though the moving force for the segment-lever 62 were the actuating-bail and not the key-lever. l

The invention has been shown in connection with a type-writing machine of thewheel type. It is to be understood, however, that it is not to be limited to machines of this type, as it is capable of being applied, with suitable changes in construction, to other types of type-writing machines. It is also to be understood that the construction by which the several features of the invention are carried into effect may be varied within wide limits. The invention is not therefore to be limited to the specific details of construction which have been hereinbefore described.

1. The combination with a constantly-running power mechanism, ofa type mechanism, a normally-inoperative actuating mechanism, means for intermittently connecting the actuating mechanism and the type mechanism, a bank of keys, and means controlled by each of the keys for causing the power mechanism to operate the actuating mechanism,substan tially as described.

2. The combination with a constantly-running power mechanism, of a type mechanism, a normally-inoperative actuating mechanism therefor, a bank of keys, means for positively connecting the actuating mechanism to the type mechanism, said means being constructed to be operated by each of the keys, and means for causing the power mechanism to operate the actuating mechanism, substantially as described.

3. The combination with a constantly-running power mechanism, of a type mechanism, a normally-inoperative actuating mechanism, a bank of keys, means for positively connecting the actuating mechanism to the type mechanism, and means for causing the power mechanism to operate the actuating mechanism, both sets ofrmeans being constructed to be operated by each of the keys, substantially as described.

4. The combination with a constantly-run ning power mechanism, of a type mechanism comprising a series of separate characters, a normally-inoperative actuating mechanism connections between the actuating mechanism and the type mechanism whereby the actuating mechanism is caused to operate each of said characters, a clutch mechanism for connecting the actuating mechanism to the power mechanism, a bank of keys, and connections between each key and the clutch mechanism, substantially as described.

5. The combination with a constantly-running power mechanism, ot' a type mechanism, a normally-inoperative actuating mechanism therefor, a clutch mechanism for connecting the operating mechanism to the power mechanism, connections including locking devices between the type mechanism and the actuating mechanism, a bank of keys, connections between each key and the clutch mechanism, and means whereby each key operates the locking devices, substantially as described.

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6. The combination with a constantly-run` ning power mechanism, of a type mechanism, a normally-inoperative actuating mechanism therefor, a clutch mechanism l'or connecting the actuating mechanism to the power mochanism, connections including locking` devices between the type mechanism and the actuating mechanism, locking mechanism for preventing the operation ot' the type mechanism, releasing devices for the locking mechanism, a bank of keys, connections between each key and the clutch mechanism, means whereby each key releases the locking mechanism and throws the locking devices into operation, substantially as described.

7. The combination with a constantly-running power mechanism, of a type mechanism, a normally inoperative actuating member, a clutch mechanism for connecting said member to the power mechanism, connections including locking devices between said member and the type mechanism, a bank of keys, connections between each key and the clutch mechanism, and means whereby each key operates said locking devices, substantially as described.

S. The combination with a constantly-running power mechanism, of a type mechanism, anormally-inoperative actuating-bar,connections including a clutch between the barand the power mechanism, means for giving the bar a lateral movement, means whereby said bar operates the type mechanism, a bank of keys, and connections between each key and the clutch, substantially as described.

9. The combination with a constantly-running power mechanism, of a type mechanism, a normally-stationary actuating-bar, connections including a clutch between the bar and the power mechanism, means for giving the bar a lateral movement, means whereby said bar operates the type mechanism, a bank of keys, and connections between each key and the clutch, substantially as described.

10. The combination with a constantly-running power mechanism, of a type mechanism, a normally-iuoperative actuating-bar,connections including a clutch between the har and the power mechanism, connections including locking devices between the type mechanism and the bar, a bank of keys, connections between eaeh key and the clutch, and means whereby each key operates the locking devices, substantially as described.

11. The combination with a constantly-running power mechanism, of a type mechanism, a normally-stationary actuating-bar, connections including a clutch between the bar and the power mechanism, connections including locking devices between the type mechanism and the bar, a bank of keys, connections between each key and the clutch, and means whereby each key operates the locking devices, substantially as described.

12. The combination with a constantly-running power mechanism,0f a type mechanism, a normally-inoperative actuating-bar,connec tions including a clutch between the bar and the power mechanism, connections including locking devices between the type mechanism and the bar, locking mechanism for preventing the operation of the type mechanism, releasing devices for said locking mechanism, a bank ol keys, connections between each key and the clutch, means whereby each key operates the locking devices, an-d means whereby each key operates the releasing devices for the locking mechanism, substantially as described.

13. The combination with aconstantly-rnnning power mechanism, of a type mechanism, a normally-stationary actuating-bar, connections including` a clutch between the bar and the power mechanism, connections including locking devices between the type mechanism and the bar, locking mechanism for preventing the operation of the type mechanism, releasing devices for said locking mechanism, a bank of keys, connections between each key and the clutch, means whereby each key operates the locking devices, and means whereby each key operates the releasing devices for the locking mechanism, substantially as described.

14. The combination with a type mechanism comprising a series of separate characters, of a constantly-running power mechanism, a bank of keys,means common to and controlled by each ot' the keys for intermittently establishing a connection between the type mechanism and the power mechanism whereby the power mechanism operates each character, and means for interrupting said connections after each printing movement whereby the operation of a key produces a single printing movement only, substantially as described.

15. The combination with a type mechanism comprising a series of separate characters, of a constantly-running power mechanism, a drivin g-wheel, devices whereby said drivingwheel maybe secured to the power mechanism, a controller for said devices, means whereby the drivi iig-wheel operates each character of the type mechanism, a bank of keys, and means whereby each key operates the controller, substantially as described.

1G. The combination with a type mechanism, of a constantly-running power mechanism, a driving-wheel, stopping devices for the wheel, devices whereby said wheel may be secured to the power mechanism, a controller for said devices, said controlleralso operating the stopping devices, means whereby the driving-wheel operates the type mechanism, a bank of keys, and means whereby each key operates the controller, substantially as described.

17. The combination with a constantly-running power mechanism, of a type mechanism, a driving-wheel, a movable actuating member, connections between said member and the driving-wheel, connections including locking devices between the type mechanism and the actuating member, devices for connecting the driving-wheel to the power mechanism, a controller for said devices, a bank of keys, means whereby each key operates the IOO IIO

controller, and means whereby each key operates the locking devices, substantially as described.

18. The combination with a constan tly-running power mechanism, of a driving-wheel, a type mechanism, connections between the driving-wheel and the type mechanism, de- Vices for securing the driving-wheel to the power mechanism, a controller foi1 said devices, a slide-bar for operating the controller, a bank of keys, and means whereby each key operates the slide-bar, substantially as described.

19.- The combination with a constantly-running power mechanism, of a type mechanism, a driving-wheel, connections between said wheel and the type mechanism, devices for connect-ing the wheel to the power mechanism, a controller for said devices, a bank of keys, means whereby each key operates the controller, and means for disconnecting the Wheel from the power mechanism after each operation of the type mechanism, substantiallyl as described.

20. The combination with a constantly-running power mechanism, of a type mechanism, a driving-wheel, a clutch between the wheel and the power mechanism, a controller for said clutch, a bank of keys, means whereby each key operates the controller to permit the clutch to secure the wheel to the power mechanism, means operated by the controller for disconnecting the wheel from the power mechanism after each operation of the type mechanism, and connections between the wheel and the type mechanism, substantially as described.

21. The combination with a constantly-running power mechanism, of a type mechanism, a driving-wheel,connections between the type mechanism and the wheel, a clutch between the wheel and the -power mechanism, a controller for said clutch normally positioned to render the clutch inoperative, a bank of keys, means whereby each key operates the controller, and means whereby the controller is caused to assume its normal position after it has been operated so as to again disconnect the clutch, substantially as described.

22. The combination with aconstantly-running power mechanism, of a type mechanism, a driving-wheel,connections between the driving-wheel and the type mechanism, a clutch between the drivingwheel and the power mechanism, a controller normally positioned to render the clutch inoperative, a slide-bar for operating the controller, a bank of keys,

means whereby each key operates the slidebar, and means for disconnecting the slidebar from the controller after it has been operated so that the controller may resume its normal position, substantially as described.

23. In a type-writing mechanism, the combination with a constantly-running power mechanism, ofa driving-wheel, a clutch for securing the drivingwheel to the power mechanism, a cont-roller normally rendering the clutch inoperative, a stopping mechanism for the driving-wheel, means for operating the controller' to throw the clutch into operation, means whereby the controller operates theI stopping devices to release the wheel, and means moving with the wheel for throwing the stopping devices into operation, substantially as described.

24. In a type-writing mechanism, the com bination with a cdnstantly-running power mechanism, of a driving-wheel, a clutch between the driving-wheel and the power mechanism,arockingcontrollernormallyrendering the clutch inoperative, a stopping mechanism for the wheel, connections between the controller and the stopping mechanism whereby the stopping mechanism is caused to release the wheel as the controller moves into inoperative position, means whereby the controller assumes its operative position after the clutch has been thrown into operation so as to again throw out the clutch, means carried by the wheel for throwing the stopping mechanism into operative position as the controller throws out the clutch, substantially as described.

25. In a type-writing mechanism, the combination with a constantly-running power mechanism, of a driving-wheel, a clutch between the power mechanism and the wheel, a controller normally rendering the clutch inoperative, a slide-bar for operating the controller', a stopping mechanism, means whereby the controller throws the stopping mechanism out of operation as the clutch connections become operative, means carried by the wheel for disconnecting the slide-bar from` the controller, whereby the controller is allowed to assume its normal position, and means carried by the wheel for throwing the stopping mechanism into operation, substantially as described.

26. In a type-writing mechanism, the combination with a constantly-running power mechanism, of a driving-wheel, means for connecting the wheel to and disconnecting it from the power mechanism, a stop-arm engaging the wheel, said arm having a curved extension, means for throwing the stop-arm out of operation as the Wheel is connected to the power mechanism, a pin mounted on the wheel and engaging the extension of the stoparm for throwing the same into operation as the wheel is disconnected from the power mechanism, substantially as described.

27. In a type-writing mechanism, the combination with a constantly-running power mechanism, of a driving-wheel, a clutch between the shaft and the wheel, a controller normally rendering the clutch inoperative, a slide-bar for operating the controller, a projection on the bar, and a coperatingprojection on the wheel for disconnecting the bar from the controller after the controller has been operated, substantially as described.

28. In a type-writing mechanism, the combination with a constantly-running power IOO IIO

mechanism, of a driving-wheel, a clutch between thepower mechanism and the wheel, a rocking controller normally rendering the clutch inoperative, a slide-bar for operating the controller, a stop-arm having a curved extension, means whereby the controller throws the stop-arm out of operation as it is moved to render the clutch operative, means carried by the wheel for disconnecting the slide-bar from the controller, whereby the controller is allowed to assume its normal position, and a piu carried by the wheel and engaging the extension of the stop-arm for throwing the same into operation as the wheel is disconnected from the power mechanism, substantially as described.

29. The combination with a constantly-running power mechanism, of a type mechanism, a drivingwheel, connections between the driving-wheel and the type mechanism, a clutch for securing the driving-wheel to the power mechanism, a controller normally holding the clutch out of operation, stopping devices for the driving-wheel, a bank of keys, means whereby each of the keys operates the controller to throw the clutch into operation, means whereby the controller operates the stopping devices to release the. wheel, and means moving with the wheel for throwing the stopping devices into operation, substantially as described.

30. The combination with a constantly-running power mechanism, of a type mechanism, a driving-wheel, a clutch between the driving-wheel and the power mechanism, a rocking controller normally rendering the clutch inoperative, a bank of keys, means whereby each key operates the controller, a stopping mechanism for the wheel, connections between the controller and the stopping mechanism whereby the stopping mechanism is caused to release the wheel as the controller moves into inoperative position, means carried by the wheel for disconnecting the controller from its operating connections, whereby the controller is allowed to resume its normal position, and means carried by the wheel for throwing the stopping mechanism into operative position, substantially as described.

3l. The combination with a constantly-running power mechanism, of a type mechanism, a driving-wheel, a clutch between the drivingwheel and the power mechanism, a rocking controller normally rendering the clutch inoperative, a slide-bar for operating the controller, a bank of'keys, means whereby each key operates the slide-bar, a stopping mechanism, means whereby the controller throws the stopping mechanism out of operation as the clutch becomes operative, means carried by the wheel for disconnecting the slide-bar from the controller, whereby the controller is allowed to assume its normal position, and means carried by the wheel for throwing the stopping mechanism into operation, substantially as described.

32. The combination with aconstantly-ruuwhich normally holds the pawl out of operan tion, a slide-bar for operating the controller, a bank ot keys, means whereby each key operates the slide-bar, a type mechanism, and connections between the type mechanism and the drivin g-wheel, substantially as described.l

33,. The combination with a constantly-running power-'shaft,of two wheels mounted thereon one of which is a driving-wheel loose on the shaft and the other of which is secured to the shaft, pawl-and-ratchet connections between the wheels, a rocking controller having a cam which normally holds the pawl out ot' operation, a slide-bar for operating the controller, a bank of keys, means whereby each key operates the slide-bar, astop-arm, means whereby the controller operates the stop-arm as it is rocked so that its cam passes from beneath the pawl, means carried by the drivingwheel for disconnecting the slide-bar from the controller, and means also carried by the driving-wheel for throwing the stop-arm into operation as the controller throws out the pawl, substantially as described.

34. The combination with aconstantly-runningpower-shaft,of two wheels mounted thereon one ot' which is a driving-wheel loose on the shaft and the other of which is secured to the shaft, pawl-and-,ratchet connections between the wheels, a rocking controller having a cam which normally holds the pawl out of operation, a slide-bar for operating the controller, a bank ot keys, means whereby each key operates the slide-bar, a stop-arm, means whereby the controller operates the stop-arm as it is rocked so that its cam passes from beneath the pawl, means carried by the drivingwheel for disconnecting the slide-bar from the controller, means also carried by the driving-wheel for throwing the stop-arm into operation as the controller throws out the pawl, a type mechanism and connections between the type mechanism and the driving-wheel, substantially as described.

35. The combination with a type mechanism, of a normally-inoperative power-driven actuating mechanism, a bank of keys, mechanical means controlled by each of the keys for throwing the actuating mechanism into operation, and means independent of the means for throwing the actuating mechanism into operation whereby each of the keys causes the actuating mechanism to operate the type mechanism, substantially described.

36. The combination with a type mechanism ot' a normally-inoperative power-driven actuating mechanism, a bank of keys, means controlled by each of the keys for throwing the actuating mechanism into operation, keycontrolled means independent of the means for throwing the actuating mechanism into IOO IIO

operation for causing the actuating mechanism to operate the type mechanism and means for throwing the actuating mechanism out of operation after the actuation ot the type mechanism, substantially as described.

37. The combination with a type mechanism, of a normally inoperative actuating mechanism, connections including locking devices for securing the actuating mechanism to the type mechanism, a bank of keys, mechanical means controlled by each of the keys for throwing the actuating mechanism into operation, and means whereby each of the keys operates the locking devices, substantially as described.

3S. The combination with a type mechanism, of a normally-inoperative actuating-bar, connections including locking-levers for connecting the type mechanism to the bar, a bank of keys for operating the locking-levers, and mechanical means for throwing the actuating-bar into operation, substantially as described.

39. The combination with a type mechanism, of a series of operating members therefor, an .actuating member, a series of lockinglevers serving to connect the operating members to the actuating member, a bank of keys, means whereby the keys operate the lockinglevers, and mechanical means for throwing the actuating member into operation, substantially as described.

40. The combination with a type mechanism, of a series of operating members therefor, an actuating member, a series of lockinglevers serving to connect the operating members to the actuating member, a bank of keys, means whereby the keys operate the lockinglevers, and mechanical means controlled by the keys for throwing the actuatingmember into operation, substantially as described.

4l. The combination Vwith a type mechanism, of' an actuating-bar, a series of operating-levers, a series of locking-levers serving to connect the operating-levers to the actuating-bar, a bank of keys for operating the locking-levers, and. mechanicalmeans for operating the actuating-bar, substantially as described.

42. The combination with a type mechanism, of an actuating-bar, a series of operating-levers, a series of locking-levers serving to connect the operating-levers to the actuating-bar, a bank of keys for operating the locking-levers, and mechanical means controlled by the keys for operating the actuating-bar, substantially as described.

43. The combination with an actuating-bar, of a type mechanism, a series of operating-levers therefor, a series of notched locking-levers serving to connect the operating-levers to the actuating-bar, a series of key-levers for operating the notched locking-levers, a power mechanism for driving the actuatingbar, and means for connecting the actuatingbar to the power mechanism, substantially as described.

44. The combination with an actuating-bar,

- of a type mechanism, of series of operating-levers therefor, a series of notched locking-levers serving to connect the operating-levers to the actuating-bar, a series of key-levers for operating the notched locking-levers, a power mechanism for driving the actuatingbar, means controlled by the key-levers for connecting the actuating-bar to the power mechanism, substantially as described.

45. The combination with a type mechanism, of a power mechanism, an actuating-bar,

connections including a clutch between the actuating-bar and the power mechanism, a

series ot' operating-levers, a series of notched locking-levers serving to connect the operating-levers to the actuating-bar, a series of key-levers for operating the notched lockinglevers,and means controlled by the key-levers for throwing the clutch of the power mechanism into operation, substantially as described.

46. rlhe combination with a type mechanism, of an actuating-bar, a series of operating members, a series of spring-held locking-levers,a guide for positioning the locking-levers, a series of key-levers arranged to operate the locking-levers, and a power mechanism for operating the actuating-bar, substantially as described.

47. The combination with a type mechanism, of an actuating-bar, a power mechanism, connections including a clutch between the power mechanism and the actuating-bar, a series of operating-levers, a series of springheld locking-levers operating to connect the operating-levers to the actuating-bar, aseries of key-levers arranged to operate the lockinglevers, and means controlling each key-lever for throwing the clutch into operation, substantially as described.

4S. The combination with a type mechanism, ot' an actuating-bar, a power mechanism, connections including a clutch between the power mechanism and the actuating-bar, a

-\ series of operating-levers, a series of springheld locking-levers operating to connect the operating-levers to the actuating-bar, a guide for the locking-levers, a series of key-levers arranged to operate the locking-levers, and means controlled by each key-lever for throwing the clutch into operation, substantiallyas described.

49. The combination with a type-carrier, of a support, a series of tu mblers movable with respect to the support, operating connections between the support and the type-carrier, means for locking each tumbler to the support, and an operating device for each tumbler, substantially as described.

50. The combination with a type-carrier, of a sleeve, a series of tumblers movable with respect to the sleeve, operating connections between the sleeve and the type-carrier, means for locking each tumbler to the sleeve, and

an operating device for each tumbler, substantially as described.

51. The combination with a type-carrier, of

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a support, operating connections between the support and the type-carrier, a series of tumblers movable with respect to the support, means for locking any one of the tu mblers to the support, means for moving the tumbler so locked and the support, and means for preventing any other tumbler from engaging the support until the support has returned to its normal position, substantially as described.

52. The combination with a type-carrier, of a sleeve, operating connections between the sleeve and the type-carrier, a series of tumblers movable with respect to the sleeve, means for looking anyone of the tumblers to the sleeve, means for moving the tumbler so locked and the sleeve, and means for preventing any other tumbler from engaging the sleeve until the sleeve has returned to its normal position, substantially as described.

53. The combination with a type-carrier, of a support, operating connections between the support and the type-carrier, a series of tumblers movable with respect to the support, means brought into operation by the movement of each tumbler with respect to the support for locking that tumbler to thc support, and an operating device for each tumbler, substantially as described.

5i. The combination with a type-carrier, of a sleeve, operating connections between the sleeve and the typecarrier, a series of tumblers movable with respect to the sleeve, means brought into operation by the move- 1n ent of each tumbler with respect to the sleeve for locking that tumbler to the sleeve, and an operating device foreach tumbler, substantially as described.

55. The combination with a type-carrier, of a support having a projection, a series of notched tu mblers movable with respect to the support, and an operating member for each tumbler, said member operating to move the tumbler so that its notch engages the projection on the support and then to move the support and the tumbler, substantially as described.

5G. The combination with a type-carrier, of

` a sleeve having a projection, a series of notched tumblers movable with respect to the sleeve, and an operating member for cach tumbler, said member operating to move the tumbler so that its notch engages the projection on the sleeve and then to move the sleeve and the tumbler substantially as described.

57. rlhe combination wit-h a type-carrier, of a support having a projection, a series of notched tumblers movable with respect to the support, segment-teeth on each tumbler, and a segment-lever for each tumbler, each segment-lever operating to move its tumbler so that the notch in the tumbler enga-ges the projection on the support and then to move the support and the tumbler, substantially as described.

5S. The combination with a type-carrier, of a support, a series of tumblers movable with respect to the support, operating connections between the support and the type mechanism, means for locking each tumbler to the support, an operating device for each tumbler, an actuating mechanism, means for locking each operating device to the actuating mechanism, and a powcrmeehanism for operating the actuating mechanism, substantially as described.

59. The combination witha type-carrier, of a support, a series of tumblers movable with respect to the support, operating connections between the support andthe type-carrier, means for locking each tumbler to the support, an operating device for each tumbler, an actuating mechanism, a locking device for securing each operating device to the actuating mechanism, a clutch-controlled power mechanism, a bank of keys, and means operated by each key for connecting the power mechanism to the actuating mechanism, substantially as described.

60. The combination with a type-carrier, of a support, a series of tumblers movable with respect to the support, operating connections between the support and the type-carrier, means for locking each tumbler to the support, an operating device for each tumbler, an actuating mechanism, a locking device for securing each operating device to the actuating mechanism, a power mechanism, a bank of keys, and means operated by each key for connecting the power mechanism to the actuating mechanism, substantially as described.

61. The combination with a typecarrier, of a support, a series of tu mblers movable with respect to the support, operating connections between the support and the type-carrier, means for locking each tumbler to the support, an operating device for each tumbler, an actuating mechanism, a locking device for securing each operating device to the actuating mechanism, a power mechanism, a bank of keys, a clutch for throwing the power mechanisminto operation and means operated by each key for throwing in the clutch, substantially as described.

62. The combination with a type-carrier, of a support, a series of tumblers movable with respect to the support, operating connections between the support and the type-carrier, means for locking each tumbler to the support, an operating device for each tumbler, an actuating mechanism, a locking device for securing each operating device to the actuating mechanism, a power mechanism, a bank of keys, means whereby each key operates a locking device to lock an operating device to the actuating mechanism, and means operated by each key for connecting the power mechanism to the actuating mechanism, substantially as described.

G3. The combination with a type-carrier, of a support, a series of tumblers movable with respect to the support, operating connections between the support and the type-carrier, means for locking ea'ch tumbler to the sup- IOO IIO

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tween the type-carrier and cach support, an operating device for each support including a tumbler, a locking mechanism for each support, an independent releasing mechanism for each locking device, and a releasing mechanism common to thelocking devices ofboth snpports, substantially as described.

72. The combination with a type-carrier, of a pair of supports, operating connections between the type-carrier and each support, a series of key-levers a part of which cooperate with one of the supports and the remainder of which coperate with the other support, means including a tumbler thrown into operation by the key-levers for operating the supports, a locking device for each support, an independent releasing device for the locking device of each support operated by the key-levers for that support, a releasing device common to the locking devices of both supports which is thrown into operation aft-er a predetermined amount of movement of one of the supports, substantially as described.

7 3. The combination with a type-carrier, of a pair of supports, operating connections between each support and the type-carrier, a series of key-levers a part of which operate in connection with one of the supports and a part of which operate in connection with the other support, means thrown into operation by each key-lever for operating the supports, a locking-arm extending from each support, a finger coperating with each locking-arm, means whereby one of the fingers is operated by a part of the key-levers, means whereby the other nger is operated by the remainder of the key-levers, and a common operating device for both iingers, substantially as described.

74. The combination with a pair ofsupports, of a type-carrier, operating connections between each support and the type-carrier, a series of key-levers, a part of which operate inconnection with one of the supports and the remainder in connection with the other support, means thrown into operation by the key-levers for operating the support, a locking-arm connected with each support, a shaft, a finger cooperating with each locking-arm, said fingers being'monnted on and movable with respect to the shaft and each iinger having an extension, means connected with each extension for operating the shaft, means whereby part of the key-levers operate one of the extensions, and means whereby the remainder of the key-levers operate the other extension, a power mechanism, means controlled by the shaft for throwing the power mechanism into operation, and a releasing de vice operating on both extensions, substantially as described.

75. The combination with a type-carrier, of a two-part operating mechanism including a plurality of tumblers, connections between each part of the operating mechanism and the type-carrier, an independent locking device for each part of the two-part operating mechanism, an independent releasing device t for each locking device, and a common releasing device for both locking devices, substantially as described.

76. The combination with a type-carrier, of a two-part operating mechanism including a plurality of tumblers, connections between each part of the operating mechanism and the type-carrier, an independent locking device for each part of the two-part operating mechanism, an independent releasing device for each locking device, and a common releasing device for both locking devices operated from the operating mechanism, substantially as described.

77. The combination with a type-carrier, of a plurality of sets of tumblers, connections between each set of tumblers and the type-carrier whereby each tumbler operates the carrier, a plurality of locking devices, one for each set of connections, a releasing device for each locking device, and a releasing device common to all the locking devices, substantially as described.

7S. The combination with a type-carrier, of a plurality of sets of tumblers, connections between each set of tumblers, and the type-carrier whereby each tumbler operates the carrier, a plurality of locking devices one for each set of connections, a releasing device for each locking device, a releasing device common to all the locking devices, and means whereby said device is operated from the tumblers, substantially as described.

79. The combination with a type-carrier, of a plurality of sets of graduated tumblers, connections between each set of tumblers and the type-carrier whereby each tumbler operates the carrier, a plurality of locking devices one for each set of connections, a releasing device foreach locking device, a releasing device common to all the locking devices, and means whereby said device is operated from the tumblers, substantially as described.

80. The combination with a type-carrier, of a plurality of sets of graduated tumblers, connections between each set of tumblers and the type-carrier whereby the tumblers operate the type-carrier, a set of key-levers, means controlled by the key-levers for operating the tumblers, a locking device for each set of connections, an independent releasing device for each locking device, a releasing device common to all the locking devices, means whereby each tumbler operates the common releasing device, and means whereby a movement of a key-lever throws one of the tu mblers into operation and simultaneously releases the locking devices for the connections of that tumbler, substantially as described.

81. The combination with a type-carrier, of a pair of supports having projections, operating connections between the supports and the type-carrier, a series of notched graduated tumblers carried on each support andl movable with respect thereto, a locking device for each support, an independent releas- IOO IIO 

